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NrTn STATES Arnim erica.

DAVID N. B. COFFIN, OF NEWTON, MASSACHUSETTS.

PUMP.

SPECIFICATION forming part of Letters Patent No. 262,208, dated August 8, 1882.

Application filed lDecember' 6, 1881. (No model.)

To all whom lt may concern.

Be it known that I, DAVID N. B. GOFFIN, of the city of Newton, in the county of Middlesex and State of Massachusetts, have invented certain new and usel'ul Improvements in Pumps; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The nature ot' my invention relates to the various parts and the general construction ot' a pump to meet requirements especially, but not exclusively, on board of comparativelyshallow vessels, where the water in the bilge and hold requires to be lifted a comparativelyshort distance, butin large quantities; where, also, compaetness in all its dimensions is a desideratum; where, also, itis sometimes-as on lumber-carryin g vessels-desirable to operate the pump when freight is piled high at two or more sides of the pump; where, also, simplicity and cheapness is, if possible, more than ever a requisite.

With reference to the drawings, Figure lis a plan of the pump without the levers, leversocket, and links. Fig. 2 is a sectional elevation, the section cutting centrally through barrel, spout, and openings in the valve-seats, and not through the bars ot' the seat. Fig. 3 is an elevation showing the wooden lever used in the cast lever-socket. Fig. 4 is a perspective of the lever-socket. Fig. 5 is a plan of the low-er valve-guard. Fig. 6 is a plan ot' the plunger. Fig. 7 is a plan of the plunger rod or stein and upper valve-guard. Fig. Sis a plan of the base of the pump, showing lower valve-seat, Sac. Fig. 9 is a plan of the pump lever or levers, fulcrum-pin, and ad justing-pin. Fig. l0 is au elevation of the l'ulcrum-links. Fig. 11 is a perspective view ot' a plunger or valve-seat, provided with obliquely-set barslike a windmills fans or a water-wheels bucketsfor the purpose o t giving a spiral or circular ilow to the water, for the purpose of changing at each stroke the position of the free rubber valve, and so preventing its resting constantly in the same position on the bars of the seat.

Like letters refer to the same or corresponding parts in all the gures.

The base or deck plate is marked a, and is constructed with a circular upwardly-projecting rim or ilange, between which and the cylinder g is formed the water-way b, a-nd on the baseis formed the spout d, to deliver the water. It has also the valve-seat with openings c, also the annular packing-seat e, to receive the packing f, on which is seated the barrel g. In the base is formed the water-chamber It, under the valve, with which is connected the suction-pipe t', either by screwing in, as shown, or by Hanging it and bolting, or other suitable means. The barrel is of peculiar construction. To the usual cylindrical part is united the broader reservoir part, j, between which and the barrel proper is arranged an annular water-way or annular series ot' water-ways, 1o, through which the water tlows from the top of the barrel and reservoirj directly downward around the barrel into the water-way b of the base, from which it escapes through the spout d into any suitable conductor or upon the deck, as desired. This barrel gis seated upon a suitable annular packing in the annular seat e, and secured to the base by means of four bolts, so that it can be turned to either of the four angles with the spout, and so deliver in either ofthe four directions in respect to the lever or brake-i. e., the barrel may be nnbolted from the base and turned with reference to it onefourth, one-half, or three-fourths of a revolution, and bolted to it again at either quarter, according to the directionl it is required to place spout d with reference to the brake or lever. The lower valve, which, as well as the plunger-valve, is a free annular ring ot' vulcanized rubber goods or other suitable material, rests upon the valve-seat around the hub, on which the valve-guard rests a little above. The guard is placedjust high enough and made just convex enough on its under side to allow the proper volume of water to pass. The guard is securely iixed relatively to the Valveseat, as shown in Fig. 1, and the valve vibrates between it and its seat, as well about the central hub or guide as at its periphery, though not with a movement of equal extent. The valve of the plunger differs only in that the guard is tlxed to or about the plunger rod or stem lo, which extends upward and is kept in proper line by means of a guide, l. To the plunger-rod is pivoted the lever or levers m, which embrace it on each side, as they also do IOO the flat part of lever-socket n. v'lhis lever, or levers, is pivoted to the fulcrum-links o, which are pivoted to the barrel g. A pimp, adjusts the lever-socket@ obliquely to the lever m, and this is the usual position in which it is used to operate the pump. Another pin-hole (or more, if desired) is provided in the levers m at q, whereby the lever-socket may be adjusted in an upright or other position when there is not room to use it in the obliqueposition. The wooden lever is drawn to indicate this upright position, and also with two knobs, or a neck and a rope attached thereto, by means of which two sailors, one at each end of' the rope, may operate the pump over two piles of lumber or other freight between which the pump is located. rlhis detachable lever may be ot' wood or iron, and may be held in the lever-socket by means of a pin or screw.

At s is shown a rubber or other cushion, and also at t, against which the upward and downward strokes ofthe plunger are cushioned.

A screw-plug' at u serves to admit air to let the water out of the valves by the aid ot' a stroke or two ofthe lever when necessary to prevent freezing.

The usual materials-imm brass, &c.may be used in the construction of partsnot otherwise specified.

I claim- 1. The pump cylinder g, provided with the ovexjutting attached reservoir or basin j and the annular series of vertical or approximatelyvert-ical delix'ery-oritlces w, substantially as shown.

2. The barrel g, having the overjutting reservoir j, provided with the water-ways w, in combination with the base a, having the pipechamber h, the packing-seat c, and valve-seat, substantially as shown.

3. The barrel g, having the overjutting reservoirj, provided with the water-ways fw, in combination with the base a, having the pipechamber h, the packing-seat e, and valve-seat, the water-way b, formed by the barrel and base, and thc spout d, substantially as described.

4. The adjustable lever-socket n, in combination with the lever 1n and the plunger k, substantially as described.

5. The double knob or necked lever7 in combination with the adjustable lever, substantially as described.

6. rlhe combination ot' the central guide, valve-seat, valve-guard, and annular valve,

constructed as described, the valve having free play and space to vibrate between the seat and guard, substantially as described.

7. The valve-seat having the oblique radial bars, in combination with the free annular' valve, substantially as shown.

S. The combination of the two links o, two levers, m, and lcver-socket o1, substantially as described.

DAVID N. B. COFFIN.

Witnesses:

J oHN H. STEVENS, W. H. BUTLER. 

